BUG: memory leak
unreferenced object 0xffff88804ae890c0 (size 32):
  comm "syz-executor.1", pid 37852, jiffies 4297119955 (age 22.693s)
  hex dump (first 32 bytes):
    39 70 2d 66 63 61 6c 6c 2d 63 61 63 68 65 2d 34  9p-fcall-cache-4
    32 34 00 4a 80 88 ff ff 10 00 00 00 00 00 00 00  24.J............
  backtrace:
    [<000000000fc340f6>] kstrdup+0x36/0x70 mm/util.c:60
    [<0000000080dd9938>] kstrdup_const+0x53/0x80 mm/util.c:83
    [<000000008a23732f>] kvasprintf_const+0x10c/0x1a0 lib/kasprintf.c:48
    [<00000000e0bddf6e>] kobject_set_name_vargs+0x56/0x150 lib/kobject.c:297
    [<0000000095ad548e>] kobject_add_varg lib/kobject.c:392 [inline]
    [<0000000095ad548e>] kobject_init_and_add+0xc9/0x160 lib/kobject.c:481
    [<0000000079038fda>] sysfs_slab_add+0x172/0x200 mm/slub.c:5631
    [<00000000f9a4bb22>] __kmem_cache_create+0x3db/0x520 mm/slub.c:4450
    [<0000000053eaf220>] create_cache mm/slab_common.c:255 [inline]
    [<0000000053eaf220>] kmem_cache_create_usercopy+0x1db/0x2f0 mm/slab_common.c:350
    [<00000000b94bc3c0>] p9_client_create+0xc6a/0x1230 net/9p/client.c:1074
    [<00000000f4fa7529>] v9fs_session_init+0x1dd/0x1680 fs/9p/v9fs.c:406
    [<000000003ca8942c>] v9fs_mount+0x79/0x8f0 fs/9p/vfs_super.c:126
    [<000000006763553c>] legacy_get_tree+0x105/0x220 fs/fs_context.c:593
    [<00000000035b1e1e>] vfs_get_tree+0x8e/0x300 fs/super.c:1572
    [<000000007b3bf2e9>] do_new_mount fs/namespace.c:2997 [inline]
    [<000000007b3bf2e9>] path_mount+0x1490/0x21e0 fs/namespace.c:3327
    [<0000000016c72b24>] do_mount fs/namespace.c:3340 [inline]
    [<0000000016c72b24>] __do_sys_mount fs/namespace.c:3548 [inline]
    [<0000000016c72b24>] __se_sys_mount fs/namespace.c:3525 [inline]
    [<0000000016c72b24>] __x64_sys_mount+0x282/0x300 fs/namespace.c:3525
    [<000000001ec5963c>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46

BUG: memory leak
unreferenced object 0xffff888047e9dc80 (size 32):
  comm "syz-executor.1", pid 38189, jiffies 4297120284 (age 22.364s)
  hex dump (first 32 bytes):
    39 70 2d 66 63 61 6c 6c 2d 63 61 63 68 65 2d 34  9p-fcall-cache-4
    32 35 00 47 80 88 ff ff 00 00 00 00 00 00 00 00  25.G............
  backtrace:
    [<000000000fc340f6>] kstrdup+0x36/0x70 mm/util.c:60
    [<0000000080dd9938>] kstrdup_const+0x53/0x80 mm/util.c:83
    [<000000008a23732f>] kvasprintf_const+0x10c/0x1a0 lib/kasprintf.c:48
    [<00000000e0bddf6e>] kobject_set_name_vargs+0x56/0x150 lib/kobject.c:297
    [<0000000095ad548e>] kobject_add_varg lib/kobject.c:392 [inline]
    [<0000000095ad548e>] kobject_init_and_add+0xc9/0x160 lib/kobject.c:481
    [<0000000079038fda>] sysfs_slab_add+0x172/0x200 mm/slub.c:5631
    [<00000000f9a4bb22>] __kmem_cache_create+0x3db/0x520 mm/slub.c:4450
    [<0000000053eaf220>] create_cache mm/slab_common.c:255 [inline]
    [<0000000053eaf220>] kmem_cache_create_usercopy+0x1db/0x2f0 mm/slab_common.c:350
    [<00000000b94bc3c0>] p9_client_create+0xc6a/0x1230 net/9p/client.c:1074
    [<00000000f4fa7529>] v9fs_session_init+0x1dd/0x1680 fs/9p/v9fs.c:406
    [<000000003ca8942c>] v9fs_mount+0x79/0x8f0 fs/9p/vfs_super.c:126
    [<000000006763553c>] legacy_get_tree+0x105/0x220 fs/fs_context.c:593
    [<00000000035b1e1e>] vfs_get_tree+0x8e/0x300 fs/super.c:1572
    [<000000007b3bf2e9>] do_new_mount fs/namespace.c:2997 [inline]
    [<000000007b3bf2e9>] path_mount+0x1490/0x21e0 fs/namespace.c:3327
    [<0000000016c72b24>] do_mount fs/namespace.c:3340 [inline]
    [<0000000016c72b24>] __do_sys_mount fs/namespace.c:3548 [inline]
    [<0000000016c72b24>] __se_sys_mount fs/namespace.c:3525 [inline]
    [<0000000016c72b24>] __x64_sys_mount+0x282/0x300 fs/namespace.c:3525
    [<000000001ec5963c>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46

BUG: leak checking failed